The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2023
Filed:
Feb. 06, 2018
Applicant:
Skc Co., Ltd., Gyeonggi-do, KR;
Inventors:
Jin Woo Lee, Gyeonggi-do, KR;
Dae Seong Oh, Seoul, KR;
Dawoo Jeong, Gyeonggi-do, KR;
Dong Jin Lim, Gyeonggi-do, KR;
Cheol Ho Kim, Seoul, KR;
Assignee:
SKC CO., LTD., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/14 (2006.01); B29C 39/00 (2006.01); B29C 39/42 (2006.01); B29D 7/01 (2006.01); C08K 5/136 (2006.01); C08K 5/17 (2006.01); C08L 79/08 (2006.01); B29K 79/00 (2006.01);
U.S. Cl.
CPC ...
B29C 39/006 (2013.01); B29C 39/42 (2013.01); B29D 7/01 (2013.01); C08G 73/14 (2013.01); C08K 5/136 (2013.01); C08K 5/17 (2013.01); C08L 79/08 (2013.01); B29K 2079/085 (2013.01); C08L 2201/10 (2013.01);
Abstract
One embodiment relates to a method for preparing a polyamide-imide film which is colorless and transparent and has good mechanical properties, easily and efficiently in terms of yield. Particularly, the embodiment relates to a preparation method capable of obtaining a polyamide-imide film of which the optical characteristics, mechanical properties and flexibility are harmoniously improved without complicated processes, by controlling the amount of imide repeating units and amide repeating units constituting the polyamide-imide film.